Guard for lathes or other machinery



(No Model.)

H. S. HOPPER.

GUARD FOR LATHES OR OTHER MACHINERY.

Patented Aug. 12, 1890.

n4: NOHR'S PETEIIG cm, PHDTWLIYHKL, WASHINGTON, a, c.

UNITED STATES PATENT OFFICE.

HENRY S. HOPPER, OF DETROIT, MICHIGAN.

GUARD FOR LATHES OR OTHER MACHINERY.

SPECIFICATION forming part of Letters Patent No. 433,984, dated August 12, 1890.

Application filed March 25, 1890- Serial No. 345,268. (No model.)

To all whom it 'may concern:

Be it known that I, HENRY S. HOPPER, a citizen of the United States, residing at Detroit, county of WVayne, State of Michigan, have invented a certain new and useful Improvement in Guards for Lathes or other Machinery; and I declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

In the man ufacture of bottoms for pails and the like it is customary to take a piece of board, which may be termed the blank, and cut therefrom a circular piece for the bottom of the pail. This blank is placed upon a rapidly-revolving disk, and with a suitable handtool the circular piece is cut out. This causes the corner-pieces, or waste, as they are severed from the circular piece or main body to fly off in all directions on lines parallel withthe revolution of the disk, generally with a great deal of force, not only endangering the life of the workman who is operating the machine, but also the lives of those in the shop around the machine.

It is the object of my invention to provide a suitable guard around the lathe which will catch and convey these corner-pieces to a suitable receptacle, and thus prevent their flying in all directions around the shop.

In the drawings, Figure 1 is a side elevation of the guard, illustrationg the construction. Fig. 2 is an elevation at right angles to Fig. 1. Fig. 3 is a plan View, with a portion in section, on the line x a; of Fig. 1.

In carrying out the invention, A represents the lathe. This of course may be of any suitable construction or form, and may be operated in any suitable manner.

B is the blank, which is placed upon the rapidly-revolving disk.

0 represents the guard proper. This guard is in cross-section, formed as shown in Fig. 3, with a portion 0 nearly completing a circle and with one edge 0 projecting out beyond the portion 0 and forming a flange or wing,

which is in such a position that it is at an angle with the path of the flying pieces. This guard extends up on both sides of the machine from the floor, and at or about the level of the disk 13 the two sides converge toward each other and are joined at the top, as illustrated in Fig. 1. These flanges c are so located that the revolving disk containing the blank will be on a line between the flanges, as shown in Fig. 3. Now it is apparent that as the waste is cut off and flies off on a tangent it will strike these flanges c and be deflected into the circular portion of the guard. By leaving an opening in the floor beneath each circular portion these pieces will drop down into a suitable receptacle beneath. Thus, no matter at what point they leave the disk nor in what direction they fly.'be it sidewise 0r upward, they will strike the flange c, be carried into the circular part or conduit, and be deposited in the receptacle beneath. The loose pieces are thus prevented from flying around the shop and. doing any damage or from striking the workmen.

Of course the flanges 0' maybe placed at any desired angle with respect to the path of the flying pieces; but I prefer to place it at an angle of about forty-five degrees, as illustrated in the drawings, as I have found that this insures the best results.

WVhat I claim is 1. The combination, with a lathe or other cutting-machine, of a vertically-extending conduit 0, rising at each side of the machine and provided vertically along its length with a projecting flange or wing 0', extending at an angle to the flying pieces cut from the revolving work, said flanges inclining toward each other and arranged at opposite sides of the revolving work to direct the flying pieces into the respective conduits, substantially as and deflect them into the vertically-open side the revolving work in themachine, substanof the conduit, substantially as described. tially as described.

3. The combination, with alathe or other In testimony whereof I sign this specificacutting-machine, of the vertically-extending tion in the presence of two witnesses.

5 conduits c, rising at opposite sides of the ma- HENRY S. HOPPER.

chine, and provided along their length with Witnesses: the inclined flanges c, said conduits and MARION A. REEVE,

flanges converging toward each other above W. H. CHAMBERLIN. 

